body {
  display: grid;
  grid-template-columns: 2fr 3fr;
  grid-template-rows: 1fr;
  justify-items: center;
  align-items: normal;
  background-image: url(mermaid-3.jpg);
}

.cardboard-box {
    grid-template-columns: 2fr 3fr;
    grid-template-rows: 1fr;
    border: dashed Gold 2px;
    width: 60vw;
}

.cardboard-box > .item-a {
  border: solid Coral 3px;
  margin: 10px;
  padding: 5px;
  background-color: AntiqueWhite;
}

.cardboard-box > .item-b {
  border: solid Coral 3px;
  margin: 10px;
  padding: 0px 5vw 20px 5vw;
  background-color: AntiqueWhite;
}

h1, h2, h3 {
    font-family: "Courier New";
    text-align: center;
}

figcaption {
    font-family: arial;
    text-align: center;
    padding-top: 5px;
    color: DarkGreen;
}